Function spawn_local 

pub fn spawn_local<Fut>(fut: Fut) -> AnyLocalExecutorTask<Fut::Output> 
where
    Fut: Future + 'static,

Spawn a future on the thread-local executor.

The local executor must be initialized with init_local_executor before calling this function. Unlike spawn, this can handle futures that are not Send.

Panics

Panics if the local executor has not been set for this thread.